@book{82002,
	author = {Lassner, Jacob.},
	title = {The shaping of ʻAbbāsid rule /},
	publisher = {Princeton University Press,},
	year = {c1980.},
	address = {Princeton, N.J. :},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/enhancements/fy1505/79084000-d.html}
}